Alert archive / Florida / Tornado Warnings in 1998

Tornado Warning 49, NWS Melbourne, FL

September 25, 1998Indian River County, Florida

NWS Melbourne, FL issued this tornado warning at Sep 25, 1998, 11:34 AM EDT for Indian River County, Florida. It was in force for 56 min. 1 report came from inside the area while it was in force.

The area

The counties it named, with what was reported inside it.

The facts

Issued: Sep 25, 1998, 11:34 AM EDT (15:34 UTC)
Expired: Sep 25, 1998, 12:30 PM EDT
In force: 56 min
Issued by: NWS Melbourne, FL
Area: Whole counties

County Indian River County, FL

The radar

The Melbourne radar (KMLB), 47 km from the middle of the area, began a volume at 15:35 UTC, the scan nearest the moment this went out.

Open the radar archive at this moment

The archived warnings, watches and discussions in force at that minute are drawn over the scan, this one among them.

What was reported inside it

Time	Report	Where	Remark
Sep 25, 11:50 AM EDT	Tornado F1	Sebastian, FL	A tornadic waterspout move on shore from the Indian River Lagoon and crossed the north part of Sebastian knocking down trees and severly damaging the roof of a large factor building.

NCEI Storm Data entries that began inside the alert's area while it was in force. Before 2003 the local storm report archive is thin, so this is the record of what happened rather than what was phoned in.

The watch it was issued in

The SPC watch in force over the same counties when this warning went out.

Issued	Product	Office	Lasted
Sep 25, 11:00 AM EDT	Tornado Watch	SPC	12 hr

The nearest sounding before it

Cape Canaveral, FL (KXMR), launched 12:00Z, 3.6 hours before the alert went out and 86 km from the middle of its area. This is the routine balloon launch nearest before it, the air the forecaster had in hand, not a measurement taken for the alert.

Skew-T log-p

Temperature in red, dew point in green, the mixed-layer parcel dashed.

Hodograph

The wind turning with height, colored by layer: ground to 1 km, 1 to 3 km, 3 to 6 km, 6 to 10 km.

Mixed-layer CAPE: 2959 J/kg
Mixed-layer CIN: -2 J/kg
Mixed-layer LCL: 632 m above ground
0-6 km bulk shear: 2 kt
0-1 km storm-relative helicity: 13 m²/s²
0-3 km storm-relative helicity: 89 m²/s²
Significant tornado parameter: 0.0
Supercell composite: 0.0

Open this sounding in Storm Lab

The text

As transmitted, in the capitals the NWS used until 2016.

058 
WFUS01 KMLB 251536 RRA
TORMLB
FLC061-251630-

BULLETIN - EAS ACTIVATION REQUESTED
TORNADO WARNING
NATIONAL WEATHER SERVICE MELBOURNE FL
1134 AM EDT FRI SEP 25 1998

THE NATIONAL WEATHER SERVICE IN MELBOURNE HAS ISSUED A

* TORNADO WARNING FOR...

     INDIAN RIVER COUNTY IN EAST CENTRAL FLORIDA

* UNTIL 1230 PM EDT

* AT 1133 AM... NATIONAL WEATHER SERVICE DOPPLER RADAR INDICATED A
  TORNADO 5 MILES OFFSHORE INDIAN RIVER SHORES.  MOVEMENT WAS
  NORTHWEST AT 30 TO 35 MPH..

* THE TORNADO IS EXPECTED TO BE NEAR...

    WABASSO BEACH PARK NEAR ORCHID BY 1140 AM
    WINTER BEACH AND WABASSO BETWEEN 1145 AND 1200 NOON
    BETWEEN FELLSMERE AND SEBASTIAN BETWEEN BETWEEN NOON AND 1215 PM

IF YOU ARE IN THE PATH OF A TORNADO...ABANDON CARS AND MOBILE
HOMES FOR A REINFORCED BUILDING OR GET INTO A DITCH OR CULVERT.
THE SAFEST PLACE IS AN INTERIOR ROOM SUCH AS A CLOSET ON THE LOWEST
FLOOR OF A STRONG BUILDING. AVOID WINDOWS.


CRISTALDI
&

The office that day

Everything else NWS Melbourne, FL issued on the same UTC day.

Issued	Product	Office	Counties	Lasted
Sep 25, 6:10 AM EDT	Tornado Warning	MLB	Martin	30 min
Sep 25, 6:43 AM EDT	Tornado Warning	MLB	Saint Lucie	62 min
Sep 25, 7:23 AM EDT	Tornado Warning	MLB	Okeechobee	62 min
Sep 25, 7:29 AM EDT	Tornado Warning	MLB	Martin	61 min
Sep 25, 8:05 AM EDT	Flash Flood Warning	MLB	Martin, Saint Lucie	115 min
Sep 25, 10:08 AM EDT	Tornado Warning	MLB	Saint Lucie	67 min
Sep 25, 10:34 AM EDT	Tornado Warning	MLB	Indian River	66 min
Sep 25, 12:16 PM EDT	Tornado Warning	MLB	Brevard	59 min
Sep 25, 12:23 PM EDT	Tornado Warning	MLB	Osceola	57 min
Sep 25, 1:15 PM EDT	Tornado Warning	MLB	Brevard	65 min
Sep 25, 1:27 PM EDT	Tornado Warning	MLB	Osceola	58 min

Nearby

Tornado Warnings in Florida, 1998 Every tornado warning in 1998 Tornadoes in 1998

Sources

The product and its follow-ups from the Iowa Environmental Mesonet's archive of National Weather Service and Storm Prediction Center text; verification from NCEI's Storm Data; the sounding from the Mesonet's radiosonde archive; radar from the NEXRAD Level II archive.